Safety Interlock

During CNC planning and execution, Safety Interlock denotes: Interlock mechanism that prevents dangerous actions. It protects people, machine assets, and recovery quality after interruptions. Treating it as controlled process data reduces shift-to-shift variation. Use alarm history with process context to distinguish root events from secondary symptoms.

Production Relevance

Treat this as part of an integrated process chain rather than a standalone parameter. That approach reduces trial-and-error and speeds up reliable release.

Implementation Points

• Check interlock and sensor chain before changing control parameters.
• Use a written recovery SOP with restart verification steps.
• Differentiate root alarm from secondary cascade alarms.

Practical Warning Signs

• Different alarms triggered by same process step
• Recovery success depending on operator sequence
• Fault timing clustered around one operation

Risk Focus

Repeated alarms often involve process triggers, not only hardware failure. Temporary bypasses become long-term risk when closure is not tracked.

Daily Control Items

• Separate electrical, mechanical, and program evidence.
• Review alarm history by frequency and sequence pattern.
• Test E-stop and interlock behavior during preventive checks.